I think the question here is during a try in a third OT period, when both teams are required to "go for two", if A passes, B intercepts the pass in the EZ, starts to return and gets out of the EZ into the field of play, and then fumbles the ball back into the EZ where A recovers, does A score a 1 point safety?

Roy, I think in your scenerio, if A RECOVERS the ball in the end zone, it will simply be a successful 2 point try for them.

If B recovers, or if the ball rolls out of bounds, then the question about the 1 point safety for A would apply.

I can never get my A's & B's straight. The question I wanted to pose is as you noted is what do you have when B recovers it's own fumble back in the EZ?

That is a 1 point safety for A

Still, that's uncharacteristically poor wording by NCAA (more expected of NFL). Ordinarily when rules specify that a team "must" do something, there's a penalty for not doing it (such as for failure to put the ball in play) or at least a forfeit of some kind (such as a choice), so then they had to go and add "although not illegal". It would've been so much clearer to add to the appropriate provision on scoring, "...except that in any extra periods following the second, it [i.e. a field goal during a try] shall not score."

The rule as written also suggests that if team A, during a try in the 3rd or subsequent tiebreaking frame, attempts an ostensible kick at goal, but the kick winds up in possession of K who then run it in, that they don't score 2 points because it was a try for 1 point.

Robert